In late 2020, after circulating for almost a year in the human population, severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) exhibited a major step change in its …

Abstract The coronavirus disease 2019 (COVID-19) pandemic has stimulated tremendous
efforts to develop therapeutic strategies that target severe acute respiratory syndrome …

The BQ and XBB subvariants of SARS-CoV-2 Omicron are now rapidly expanding, possibly
due to altered antibody evasion properties deriving from their additional spike mutations …

Efficacy of Antiviral Agents against Omicron Subvariants BQ.1.1 and XBB | New England Journal
of Medicine Skip to main content The New England Journal of Medicine homepage Advanced …

Abstract In late 2022, SARS-CoV-2 Omicron subvariants have become highly diversified,
and XBB is spreading rapidly around the world. Our phylogenetic analyses suggested that …

Antibody Response to Omicron BA.4–BA.5 Bivalent Booster | New England Journal of Medicine
Skip to main content The New England Journal of Medicine homepage Advanced Search …

A severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron subvariant, BA.
2.86, has emerged and spread to numerous countries worldwide, raising alarm because its …

Continuous evolution of Omicron has led to a rapid and simultaneous emergence of
numerous variants that display growth advantages over BA. 5 (ref.). Despite their divergent …

Substantial Neutralization Escape by SARS-CoV-2 Omicron Variants BQ.1.1 and XBB.1 | New
England Journal of Medicine Skip to main content The New England Journal of Medicine …

The continued evolution of SARS-CoV-2 has led to the emergence of several new Omicron
subvariants, including BQ. 1, BQ. 1.1, BA. 4.6, BF. 7, and BA. 2.75. 2. Here, we examine the …